start a better impl of page scrollbars in demo [skip ci]

Author: ButchersBoy

MainDemo.Wpf/Domain/DemoItem.cs

@@ -5,6 +5,7 @@
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Markup;
 
 namespace MaterialDesignColors.WpfExample.Domain
@@ -13,6 +14,9 @@ public class DemoItem : INotifyPropertyChanged
     {
         private string _name;
         private object _content;
+        private ScrollBarVisibility _horizontalScrollBarVisibilityRequirement;
+        private ScrollBarVisibility _verticalScrollBarVisibilityRequirement;
+        private Thickness _marginRequirement = new Thickness(16);
 
         public DemoItem(string name, object content, IEnumerable<DocumentationLink> documentation)
         {
@@ -33,6 +37,24 @@ public object Content
             set { this.MutateVerbose(ref _content, value, RaisePropertyChanged()); }
         }
 
+        public ScrollBarVisibility HorizontalScrollBarVisibilityRequirement
+        {
+            get { return _horizontalScrollBarVisibilityRequirement; }
+            set { this.MutateVerbose(ref _horizontalScrollBarVisibilityRequirement, value, RaisePropertyChanged()); }
+        }
+
+        public ScrollBarVisibility VerticalScrollBarVisibilityRequirement
+        {
+            get { return _verticalScrollBarVisibilityRequirement; }
+            set { this.MutateVerbose(ref _verticalScrollBarVisibilityRequirement, value, RaisePropertyChanged()); }
+        }
+
+        public Thickness MarginRequirement
+        {
+            get { return _marginRequirement; }
+            set { this.MutateVerbose(ref _marginRequirement, value, RaisePropertyChanged()); }
+        }
+
         public IEnumerable<DocumentationLink> Documentation { get; }
 
         public event PropertyChangedEventHandler PropertyChanged;

MainDemo.Wpf/Domain/MainWindowViewModel.cs

@@ -78,7 +78,10 @@ public MainWindowViewModel()
                         DocumentationLink.DemoPageLink<Cards>(),
                         DocumentationLink.StyleLink("Card"),
                         DocumentationLink.ApiLink<Card>()
-                    }),
+                    })
+                {
+                    VerticalScrollBarVisibilityRequirement = ScrollBarVisibility.Auto
+                },
                 new DemoItem("Icon Pack", new IconPack { DataContext = new IconPackViewModel() },
                     new []
                     {                        

MainDemo.Wpf/MainWindow.xaml

@@ -80,8 +80,13 @@
                     <domain1:DocumentationLinks DataContext="{Binding ElementName=DemoItemsListBox, Path=SelectedItem}"
                                                 Margin="0 0 0 16"
                                                 />
-                    <ContentControl Margin="16" Content="{Binding ElementName=DemoItemsListBox, Path=SelectedItem.Content}"
-                                    Grid.Row="1" />
+                    <ScrollViewer Grid.Row="1" 
+                                  HorizontalScrollBarVisibility="{Binding ElementName=DemoItemsListBox, Path=SelectedItem.HorizontalScrollBarVisibilityRequirement}"
+                                  VerticalScrollBarVisibility="{Binding ElementName=DemoItemsListBox, Path=SelectedItem.VerticalScrollBarVisibilityRequirement}" 
+                                  Padding="{Binding ElementName=DemoItemsListBox, Path=SelectedItem.MarginRequirement}">
+                        <ContentControl Content="{Binding ElementName=DemoItemsListBox, Path=SelectedItem.Content}" />
+                    </ScrollViewer>
+                    
                     <materialDesign:Snackbar MessageQueue="{materialDesign:MessageQueue}" x:Name="MainSnackbar"
                                             Grid.Row="1" />
                 </Grid>